my question is about the ACPL-217 Optocoupler, i use it to control P MOSFET transistor.
The ACPL-217 work with the following schema:
I want to leave the pin 1 anode of the diode not connected in my ...

I saw this project: http://diyhacking.com/arduino-lamp-dimmer/ which I'm interessted to(except that I will have to use some 24V, still enough to hurt the Raspberry Pi).
There is several things that ...

I made an oscilloscope with AT90USB series(activated ADC in micro and send data to my own program in PC via USB).I dont need more than 0-5v but you can never tell.I know I can mislead higher voltages ...

I am looking at the datasheet at the link below, and I can't for the life of me figure out what I am missing.
http://www.digikey.ca/product-detail/en/TLP3542(F)/TLP3542F-ND/871299
This is a Toshiba ...

I'm building a ac motor starter with a optocoupler (FOD4218) and a TRIAC (BTA16), one for each phase in a three phase 400V system.
I have a question regarding the circuits that can be found all over ...

I have the following question regarding this circuit:
How is the opto being used to trigger the base of the triac?The collector of the photo-transistor is connected to the base of the triac. As per ...

I want to read MIDI data with an arduino (specifically an ATtiny85) for use in a synthesizer. The only method I'm aware of involves using an optocoupler such as the 6N138 found on this Instructable. ...

In a battery balancing system, I have four transistors and some of them are floating as you can see in this circuit:
There are four battery packs each made of two batteries (Li-Ion) and charged via ...

I am trying to create a circuit that will allow me to control the polarity of the current flowing through a coil in order to attract or repel a magnet. I would like to use two MOSFETs in series since ...

I usually see a special type of optotriac which has internal zero-crossing detection circuit in it. This type of optotriac is generally used for driving triacs. But, I don't understand its necessity. ...

I'm building a "smart" cable lock system where the user will put a steel fitting attached to the end of a steel cable into a lock aperture, after which the presence of the steel fitting needs to be ...

I am in the process of designing a project that will allow a Raspberry Pi to "print" to an old (60s) electric typewriter. I have decided to have a push-solenoid for each key (24V), for 48 total keys. ...